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Durastar ​4 Position Swivel Lock for 4" x 4-1/2" 03 Top Plate in 30, 34, & 40 Series

Volume discounts applied at checkout
  • 50-99 units: 5% Off
  • 100-199 units: 10% Off
  • 200+ units: 15% Off
Status: In Stock
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Most in-stock items ship same or next business day. Shipping rates shown at checkout.

PRODUCT CODE: PSL-03

Product Overview

Durastar 4-Position Swivel Lock for 4" x 4-1/2" Top Plate – Compatible with 30, 34, & 40 Series Casters


Key Product Features

  • Precision Fit: Designed specifically for 4" x 4-1/2" 03 top plate configurations
  • Series Compatibility: Engineered for Durastar 30, 34, and 40 Series casters
  • 4 Locking Positions: Secure the swivel for enhanced directional control
  • Improved Safety: Reduces caster drift and enhances maneuvering stability
  • Durable Construction: Built from robust materials to withstand heavy-duty use
  • Easy Installation: Seamlessly integrates with compatible Durastar caster assemblies
  • Operational Efficiency: Enhances mobility control in industrial and material handling environments
  • USA Quality Assurance: Designed and manufactured with strict adherence to performance standards

Elevate the functionality of your Durastar casters with the 4-Position Swivel Lock, crafted for seamless integration with 4" x 4-1/2" 03 top plates across the 30, 34, and 40 Series. This durable swivel lock provides firm directional control, allowing users to lock casters at fixed intervals of 90 degrees, ensuring improved handling and enhanced operational safety.

Ideal for industrial, warehouse, and heavy equipment settings, this locking accessory helps prevent unwanted caster movement while increasing stability and safety during transport or static positioning. Its rugged design ensures it stands up to demanding environments, delivering long-term reliability and performance.

Whether you're upgrading caster functionality or maintaining strict mobility controls, the Durastar 4-Position Swivel Lock delivers the strength and precision required for optimal performance.

Enhance Control and Safety with Durastar

Streamline your operations and maximize maneuverability by adding this high-performance swivel lock to your Durastar caster system. Engineered for reliability—trusted for control.

Technical Specs

Technical Specifications

  • Product Type: 4-Position Swivel Lock
  • Top Plate Size: 4" x 4-1/2" (03 Plate Configuration)
  • Compatible Caster Series: Durastar 30, 34, and 40 Series
  • Construction Material: Heavy-duty steel or industrial-grade alloy
  • Finish: Corrosion-resistant coating for durability
  • Mounting Compatibility: Integrates directly with Durastar caster assemblies using 03 top plate
  • Application: Designed for industrial carts, warehouse equipment, and material handling systems
  • Functionality: Locks caster swivel movement for improved directional stability
  • Country of Origin: Made in the USA with strict quality assurance standards
Key Features

Top 10 Product Features

  • Compatible Top Plate: Fits standard 4" x 4-1/2" 03 top plate designs for a precise and secure fit
  • Series Versatility: Optimized for use with Durastar 30, 34, and 40 Series caster models
  • Four Locking Positions: Lock swivel movement for controlled mobility
  • Enhanced Safety: Minimizes caster drift and improves directional stability during use
  • Heavy-Duty Durability: Constructed from rugged materials to withstand high-load environments
  • Industrial-Grade Performance: Ideal for carts, material handling systems, and equipment requiring secure positioning
  • User-Friendly Design: Simple to engage and disengage, streamlining on-site adjustments
  • Low Maintenance: Built for reliability with minimal upkeep over time
  • USA Quality Standards: Manufactured to meet demanding American quality control benchmarks
  • Operational Efficiency: Increases productivity and control in fast-paced working environments
Ordering & Shipping Information

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All pricing and quantity discounts are applied automatically. No promo codes required and no post-checkout price changes.

Upfront shipping costs

Shipping is calculated by order size and weight. Final shipping costs are shown before payment so there are no surprises.

Business-friendly ordering

We support bulk orders, repeat purchases, and fast quotes for larger or custom requirements.

Real support from product specialists

Need help confirming fit, compatibility, or application? Our team works directly with engineers, maintenance teams, and buyers every day.

Trusted by industrial and commercial customers

CasterHQ supplies casters and wheels for manufacturing, material handling, retail, and distribution environments nationwide.

  • Flat-rate shipping by order size. Final shipping cost shown before payment.
  • No post-checkout shipping adjustments or re-billing.
  • Most orders ship from our Texas headquarters near Dallas.

When will my order ship?

In-stock items typically ship same or next business day. Weekend orders ship Monday or Tuesday unless stated otherwise.

Will shipping cost more at checkout?

Shipping is not free on most orders. Your final shipping cost is shown before payment.

Typical transit times after shipment

Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.

Made-to-order items (lead times)

Some custom products (select Made in USA casters, keyway wheels, drive wheels) are built after purchase and ship on a longer lead time. When applicable, the ship-time estimate is shown on the product page.

Need an exact freight quote for a large order?

Contact us before ordering and we’ll confirm total landed cost upfront. Contact us.

Additional Information

Durastar 4-Position Swivel Lock – For 4" x 4-1/2" 03 Top Plate | Compatible with 30, 34 & 40 Series Casters


The Durastar 4-Position Swivel Lock is engineered to enhance directional control and stability for industrial caster systems. Designed to fit the widely used 4" x 4-1/2" 03 top plate, this lock is fully compatible with Durastar's 30, 34, and 40 Series casters, making it an ideal upgrade for equipment in high-mobility, safety-critical environments.

Engineered for Precision and Performance

This rugged swivel lock enables the user to lock the swivel movement at four fixed positions. Whether you're navigating tight warehouse aisles or securing carts for static tasks, this feature ensures predictable, straight-line movement or full lockout for maximum control. Its ergonomic locking mechanism is easy to engage, helping operators work more efficiently while minimizing drift and rotation.

Built to Withstand Demanding Conditions

Constructed from industrial-grade materials and finished with a corrosion-resistant coating, this swivel lock offers long-lasting durability even in harsh or high-moisture environments. It’s crafted to endure the weight, vibration, and repetitive motion typically seen in warehouses, distribution centers, and manufacturing facilities.

Universal Compatibility with Durastar Series

No guesswork needed—this lock integrates seamlessly with Durastar casters using the 03 top plate format. It is optimized for plug-and-play compatibility with the 30, 34, and 40 Series, offering an efficient retrofit or OEM solution that supports workflow safety and load stability.

Perfect for Industrial and Warehouse Applications

Whether you're stabilizing mobile shelving, material handling carts, or heavy-duty dollies, the Durastar 4-Position Swivel Lock delivers enhanced security and user control. Its versatility and strength make it an essential addition to operations that demand consistent caster alignment and safety.

Upgrade Your Mobility Control with Durastar

If your equipment requires reliable direction locking and rock-solid swivel control, the Durastar 4-Position Swivel Lock is the solution. Trusted by professionals in material handling and logistics, this locking mechanism enhances safety, precision, and productivity—where it matters most.

Durastar ​4 Position Swivel Lock for 4
Durastar ​4 Position Swivel Lock for 4" x 4-1/2" 03 Top Plate in 30, 34, & 40 Series

$18.00

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